A Cisco UCS server beeps continuously; this beep originates from the LSI RAID adapter.

You can view the LSI MegaRAID Card Beep Codes in order to identify the specific alarm.

If there are no failed drives reported by the Cisco Integrated Management Controller (CIMC), this problem might occur due to an issue described in this LSI MegaRaid firmware bug: LSIP200139764.

Note: TheLSI defect is reported as fixed in MegaRaid firmware 21.0.1-0111 and 21.0.1-0110. This issue affects any server vendor that uses these adapters (for example, Cisco, HP, and Dell).

You can silence the alarm in the LSI MegaRAID BIOS Config Utility. However, be aware that this process requires a server reboot in order to access the WebBIOS. The alarm control is located in Controller Properties.

Also ,if you want to avoid an LSI firmware upgrade, you can complete these steps in order to resolve this issue:

  1. Install MegaCLI. Refer to the LSI Documents & Downloadspage in order to locate documentation on this procedure.
  2. Run this command in MegaCLI in order to silence the alarm:
    # MegaCli -AdpSetProp -AlarmSilence -aALL

LSI MegaRAID Card Beep Codes:

These beep codes indicate activity and changes from the optimal state of your RAID array. For full documentation on the LSI MegaRAID cards and the LSI utilities, refer to the LSI documentation for your card.

I hope this helps.